﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Lamex.mMachine.UI
{
    public partial class FrmMAC_ShowPicture : Form
    {
        int pX, pY;
        static string strPic;
        /// <summary>
        /// 窗体动画函数
        /// </summary>
        /// <param name="hwnd">指定产生动画的窗口的句柄</param>
        /// <param name="dwTime">指定动画持续的时间</param>
        /// <param name="dwFlags">指定动画类型，可以是一个或多个标志的组合。</param>
        /// <returns></returns>
        [DllImport("user32")]
        private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);
        private const int AW_HOR_POSITIVE = 0x0001;//自左向右显示窗口，该标志可以在滚动动画和滑动动画中使用。使用AW_CENTER标志时忽略该标志
        private const int AW_HOR_NEGATIVE = 0x0002;//自右向左显示窗口，该标志可以在滚动动画和滑动动画中使用。使用AW_CENTER标志时忽略该标志
        private const int AW_VER_POSITIVE = 0x0004;//自顶向下显示窗口，该标志可以在滚动动画和滑动动画中使用。使用AW_CENTER标志时忽略该标志
        private const int AW_VER_NEGATIVE = 0x0008;//自下向上显示窗口，该标志可以在滚动动画和滑动动画中使用。使用AW_CENTER标志时忽略该标志该标志
        private const int AW_CENTER = 0x0010;//若使用了AW_HIDE标志，则使窗口向内重叠；否则向外扩展
        private const int AW_HIDE = 0x10000;//隐藏窗口
        private const int AW_ACTIVE = 0x20000;//激活窗口，在使用了AW_HIDE标志后不要使用这个标志
        private const int AW_SLIDE = 0x40000;//使用滑动类型动画效果，默认为滚动动画类型，当使用AW_CENTER标志时，这个标志就被忽略
        private const int AW_BLEND = 0x80000;//使用淡入淡出效果
        public FrmMAC_ShowPicture()
        {
            InitializeComponent();
        }
        public FrmMAC_ShowPicture(string picpath)
        {
            InitializeComponent();
            strPic = picpath;
        }
        private void FrmMAC_ShowPicture_Load(object sender, EventArgs e)
        {
            displayImageToPictureBox();
            this.Location = new Point(pX, pY);
            AnimateWindow(this.Handle, 1000, AW_SLIDE | AW_ACTIVE);
        }

        private void FrmMAC_ShowPicture_FormClosing(object sender, FormClosingEventArgs e)
        {
            AnimateWindow(this.Handle, 1000, AW_BLEND | AW_HIDE);
        }

        private void FrmMAC_ShowPicture_MouseClick(object sender, MouseEventArgs e)
        {
            this.Close();
        }

        private void FrmMAC_ShowPicture_FormClosed(object sender, FormClosedEventArgs e)
        {
            this.Close();
        }

        private void displayImageToPictureBox()
        {
            this.BackgroundImage = Image.FromFile(strPic);
            this.Width = BackgroundImage.Width;
            this.Height = BackgroundImage.Height;

            if (pX + this.Width > Screen.PrimaryScreen.WorkingArea.Right)
            {
                pX = pX - this.Width;
            }
            if (pY + this.Height > Screen.PrimaryScreen.WorkingArea.Bottom)
            {
                pY = pY - this.Height;
            }
        }
    }
}
